Service manual

OPERATION
EN
9
Service Manual
P0055 Coffee Machine - 2006
Edition
2006.08.28
Language
English
2.5. FUNCTIONAL WATER CIRCUIT DIAGRAM
1
2
3
4
56
7
8
9
10
11
12
heating
element
heating
element
hot water / steam
Thermo-
stat
Component Function
1 Water reservoir Water supply
2 Float Water empty detection
3 Water fi lter Elimination of solids from water
4 Turbine Pulse fl ow measurement, adjusts quantity
5 Pump Water fl owrate / pressure (15 bar)
6 Pressure relief valve
Protects the water circuit from overpressure conditions (valve opens at 17-19 bar)
7 Heat exchanger / heating Provides heating for delivery of water, coffee and steam
8 Temperature sensor Transmits current temperature values to the electronic control system
9 Overtemperature thermostat In the event of overheating, disconnects appliance power supply
10 Hot water / steam supply valve When opened delivers hot water or steam
11 Tubular boiler For steam delivery
12 Steam/hot water solenoid valve Opens if wand is blocked